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Showing 2 results for Aliasghari Veshareh

Azam Aliasghari Veshareh, Parisa Mohammadi,
Volume 3, Issue 2 (9-2020)
Abstract

Biodeterioration results from complex interactions between living organisms and various organic and inorganic substrates, which cause physical and chemical changes on the substrate. These changes are strongly related to the metabolic activities of living organisms. Finding a proper approach against biodeterioration is often difficult, and requires understanding the type of changes and used methods, which should be not harmful for artworks, human health and the environment. In this this article, Reliable databases such as Scopus, Science Direct, and Web of Science were used for information gathering. Physical, mechanical and chemical methods are used to control biodeterioration. Synthetic chemical biocides are often used, but due to their toxicity and environmental hazards, their use is now restricted. New researches focus on alternative solutions with minimal adverse effects. Plants contain natural chemical compounds such as essential oils, phenols, flavonoids, alkaloids, coumarins, tannins, etc., which are commonly used as drugs, bioactive molecules and nutrients. This study aims to review existing research on the effect of plant essential oils on biodeteriogenic microorganisms of cultural heritage.

Azam Aliasghari Veshareh , Parisa Mohammadi,
Volume 3, Issue 3 (12-2020)
Abstract

The beneficial effects of plant essential oils (EOs) have been known for a long time and now they are used in various fields such as medicine and aromatherapy as well as in food and pharmaceutical industries. In the last few years, the use of plant EOs has been noticed against biodeterioration of cultural heritage, which represents a powerful resource of green conservation strategies. This research aims to evaluate the antimicrobial effect of 3 essential oils of rosemary, eucalyptus and thyme on 5 fungal strains, including Aspergillus niger, Penicillium polonicum, Cladosporium limoniform, Penicillium chrysogenom, Parengyodontium album, and 3 bacterial strains including Bacillus cereus, Bacillus licheniformis, Kocuria rosea isolated from deteriorative areas of Jamé Mosque of Isfahan. The results showed that among the used EOs, thyme EO had the greatest antimicrobial effect on the selected microorganisms. This EO in 50% dilution prevented the growth of the tested microorganisms. Eucalyptus EO showed the lowest antimicrobial effect. This EO did not show any antimicrobial effect on Penicillium chrysogenum. However, eucalyptus EO was effective on the tested bacterial strains with the diameter of non-growth zone of 25, 28 and 15 mm on Bacillus cereus, Bacillus licheniformis and Kocuria rosea, respectively. According to these results, thyme EO can be potentially used to control the biodeterioration of cultural heritage.


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